Mercado Bitcoin hack went on hours after containment claim, report finds

A report found that the Mercado Bitcoin hack continued for hours after the exchange said the attack was contained. The same attacker took about $391,000, mostly from wallets Bitquery ties to BitMart, whose founder confirmed a Nov. 2 hack and suspects a link. Traders should care because it suggests incident response and disclosure at these exchanges lagged the actual breach, a trust and security concern for holders.